Ventilator.



S. H, WHEELER. VENTILATOR.

AAAAAAAAAAAA ILE'D MAR 13, 1914.

1,102,833, Patented July 7, 1914.

\ mi Ir. WHW l I] fr (fd/T 1M 1 www;

ze 145/ Alll 1a 1524 --MW 16 JMWMMMW ATTORNEY j E5 w fig. 18 19 B7 E0 SAMUEL H. WHEELER, 0F FAIRFIELD, CONNECTICUT.

VENTILATOR.

Specification of Letters latent.

Patented Jury r, m14.

Application filed March 13, 1914. Serial No. 824,451.

To all whom 'it may concern Be it known that I, SAMUEL H. WHEELER, a citizen of the United States, residing at Fairfield, county of Fairfield, State of Oonnecticut, have invented an Improvement in Ventilators, of which the following is a specification.

This invention has for its object to provide a window ventilator which may be placed in position by any person, skilled or unskilled, and without the use of other tools than a screw driver, which will be easy to adjust and to remove, which will direct incoming air currents upward and which will, in brief, be effective and so inexpensive to produce and to apply as to place it within the reach of all and adapt it for general use in dwellings, oflice buildings, halls, school houses, factories, etc.

With these ends in view I have devised the simple and novel ventilator of which the following description in connection with the accompanying drawing is a specification, reference characters being used to indicate the several parts.

Figure 1 is a vertical section of a window casing and the upper and lower sashes illustrating the application and use of my novel ventilator; lFig. 2 an elevation of the ventilator in place as seen from the right in Fig. 1; Fig. 3 a detail sectional view on an enlarged scale on the line indicated by 3 in Fig. 2; Fig. 4 a similar view on the line indicated by 4 in Fig. 2, and Fig. 5 is an elevation of one of the end pieces detached.

10 denotes the casing of a window which may be of any ordinary or preferred construction, 11 the upper sash and 12 the lower sash.

13 denotes the ventilator which may be a board or a strip of sheet metal or a frame provided with panes of glass, as shown in the drawing. The operation of all ventilators of this class requires that the lower sash be raised, as shown in Fig. 1, the upper sash remaining closed and preferably fastened in any ordinary or preferred manner, which forms no portion of the present invention. The raising of the lower sash insures an incoming current of air under the lower sash which is caused to pass upward by the deflector. The special object of the present invention is to regulate this air current and if required, to practically shut it oif entirely without closing the lower sash. The deflector is detachably held in place by end pieces 14 which are secured to the sides of the casing by screws 15, each end piece being provided with a vertical slot 16. The deiiector is provided at one end with a pin 17 adapted to engage the slot in one of the end pieces and at the other end with a spring controlled bolt 18 adapted to engage the slot in the other end piece. The bolt is preferably inclosed in a casing 19 and is retained at the thrown position by a spring 2O which bears against the inner end of the casing and a shoulder 21 on the bolt. A screw pin 22, forming a handle for the bolt, extends through a slot 23 in the deilector. To insert the deector, pin 17 is placed in the slot in one of the end pieces, and then the bolt is retracted and that end of the deflector swung into position and the bolt allowed to engage the slot in the other end piece. To remove the deflector, it is simply necessary to retract the bolt and swing that end of the defiector inward which permits the pin 17 to be withdrawn from the slot in the other end piece.

The ordinary use of my novel ventilator is illustrated by the full line position of the deflector in Fig. 1, which causes the incoming current of air, entering under the lower sash, to be deflected upward. The deflector may be swung inward and Outward freely on its centers by lifting '1t slightly so that the lower edge thereof may be moved over the window sill, indicated by 24, in Fig. 1. Should it be required to practically shut off the incoming current of air without closing the window, the deflector is swung to the position indicated by dotted lines in Fig. 1, that is with the upper edge of the defleetor resting against the lower rail of the lower sash and the lower edge of the delector resting against the sill near its inner edge. In this position of the parts, a limited amount of air will enter the room by passing under the upper sash and between the sashes and over the top of the lower sash. The volume of the incoming current of air at the bottom may be regulated at will by swinging the deflector to any intermediate position, the slots in the end pieces permitting it to be raised sufficiently to be swung backward and forward over the sill. Where the window sill is narrow lf provide a bottom piece 25, as in Fig. 2, of sufficient width to support the dellector in the dotted line position in Fig. 1, said bottom piece being preferably secured to the window sill by screws. The end pieces, where a bottom piece is used, rest upon the bottom piece instead of upon the sill7 the operation being precisely the same as before. In order to prevent the upper edge of the deector from swinging too far inward and the lower edge too far outward, `a stop pin 26 may be provided in one of the end pieces.

I-Iaving thus described my invention I claim:

l. A window ventilator comprising a defleetor having a centrally placed pin at one end and a centrally placed spring bolt at the other end, and end pieces adapted for attachment to a window casing and provided with vertical slots adapted to receive the pin and bolt on the deiiector and permit vertical movement of the del'ieetor 'when it is required to swing the lower edge thereof inward or outward.

2. A window ventilator comprising a de'L flectorhaving a centrally placed pin at one end and a centrally placed spring bolt at the other end, a bottom piece adapted for attachment to a window sill and end pieces resting on the bottom piece and adapted for specified.

3. A window ventilator comprising a deiiec'tor having a lCentrally placed pin at one end and a centrally placed springl bolt at the other end, end pieces adapted for att-adr ment to a window casing and provided with vertical slots adapted to receive the pin and bolt on the detlectorv and permit vertical movement of the deiiector when it is required to swing the lower edge thereof inward or outward, and a stop for limiting the outward movement of thele'wer edge of the deecto'r. In testimony whereof I- afiX my signature in presence of two witnesses;

SAMUEL H. WHEELER; l

l/Vitnesse's:` i

M. L. GIYND, ANDREW B. HUNTINGTON.

' copies of this patent may be obtained f'r Yme cjets each, by aa'ress'ig the *"cmmissioe of Patent- Washington, D. c. 

